What are the position sensors used in brushless DC motors?
Brushless motors for electric tools have the following advantages:
1. Replacing mechanical commutation with electronic commutation results in no sparks.
2. There is no commutator, brush, or winding on the rotor, and the rotor is a rigid structure with a long motor life of over 1000 hours.
3. The amount of electromagnetic wire used is small, the copper consumption of the winding is low, and there is no mechanical commutation loss or short-circuit current, resulting in high motor efficiency.
4. No accumulation of carbon powder, avoiding voltage breakdown caused by carbon powder accumulation, easy maintenance, and good safety.
5. Brushless motors have low noise levels, reducing environmental pollution caused by the use of electric tools.
6. Has good wide speed regulation and starting performance.
7. Having a high power to weight ratio can reduce the size and weight of tools.
At present, although the price of brushless motors for electric tools is slightly higher, many users still prefer to choose them due to their advantages in energy saving, environmental protection, and lifespan.
